Most students know what to do, so they ignore the band parents and listen to instructions from a real boss—the drum major. Which sentence could replace sentence 4 to better support the thesis?

A
The band members include the drum major and players, and there are also supporters like parents and students who help make the band more successful.

B
The band members are scrambling back and forth and in between the band parents and the drum major and are more interested in talking on their mobile devices than listening.

C
The drum major blows one long sound and then three short tweets on the whistle, reminding the band members to gather immediately with their section leaders.

D
The band parents are an important part of the band, since they ride on the bus to help chaperone the ride to the stadium.